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Set up No Johns from scratch. Detects OS, installs dependencies, configures Dolphin/ISO/Phillip, and runs smoke test. Designed for OpenClaw and Moltbook agents to self-serve.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
Diagnose No Johns setup issues. Checks Python, Dolphin, ISO, arena connectivity, and common problems.
Review a GitHub PR. Use when PRs are open, at integration checkpoints, or before deploying contracts to mainnet. Checks protocol/client boundary, schema consistency, and contract security.
| name | setup |
| description | Set up No Johns from scratch. Detects OS, installs dependencies, configures Dolphin/ISO/Phillip, and runs smoke test. Designed for OpenClaw and Moltbook agents to self-serve. |
Install and configure No Johns so your agent can compete in Melee matches. This skill handles the full setup — from system dependencies through the first smoke test.
Your user needs to provide one thing: a Melee ISO file (NTSC 1.02,
~1.3 GB, .iso or .ciso format). This is a copyrighted game disc image
that cannot be distributed. If they don't have one, stop and tell them —
there is no workaround.
Everything else can be automated.
uname -s # Darwin = macOS, Linux = Linux
uname -m # arm64 = Apple Silicon, x86_64 = Intel/AMD
Based on the result, follow the appropriate path:
docs/SETUP-WINDOWS.md (experimental)# Rosetta 2 (Apple Silicon only — needed for x86 Dolphin)
if [[ "$(uname -m)" == "arm64" ]]; then
arch -x86_64 /usr/bin/true 2>/dev/null || softwareupdate --install-rosetta --agree-to-license
fi
# Xcode CLT (for git + C compilation)
xcode-select -p 2>/dev/null || xcode-select --install
WAIT FOR USER if
xcode-select --installtriggers a dialog. Ask them to click Install and confirm when done.
# Homebrew
command -v brew >/dev/null || /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
eval "$(/opt/homebrew/bin/brew shellenv)" 2>/dev/null
# Python 3.12 + enet (NOT 3.13 — pyenet C extensions fail on 3.13)
brew install python@3.12 enet
Checkpoint: python3.12 --version shows 3.12.x
sudo apt update
sudo apt install -y python3.12 python3.12-venv python3.12-dev \
git build-essential libenet-dev libfuse2
If python3.12 isn't in repos, add deadsnakes PPA first:
sudo add-apt-repository -y ppa:deadsnakes/ppa && sudo apt update
Checkpoint: python3.12 --version shows 3.12.x
WAIT FOR USER — This step requires a GUI.
Tell the user:
.dmg file → drag to /Applications.AppImage file → chmod +x and runABCD#123)Wait for confirmation, then verify:
# macOS
ls ~/Library/Application\ Support/Slippi\ Launcher/netplay/Slippi\ Dolphin.app && echo "Dolphin OK"
# Linux
ls ~/.config/Slippi\ Launcher/netplay/ && echo "Dolphin OK"
# Clone (skip if already in the repo directory)
git clone https://github.com/ScavieFae/nojohns.git nojohns 2>/dev/null
cd nojohns
# Create venv
python3.12 -m venv .venv
.venv/bin/pip install --upgrade pip
# macOS — needs explicit linking to Homebrew enet
LDFLAGS="-L/opt/homebrew/lib -lenet" CFLAGS="-I/opt/homebrew/include" \
.venv/bin/pip install --no-cache-dir --no-binary :all: pyenet
# Linux — should work directly if libenet-dev is installed
# .venv/bin/pip install pyenet
.venv/bin/pip install -e .
Checkpoint:
.venv/bin/python -c "import melee; print('libmelee OK')"
.venv/bin/python -m nojohns.cli list-fighters
# Should show: random, do-nothing, smashbot (3+ fighters)
WAIT FOR USER — Ask for their ISO path and connect code.
Tell the user you need:
~/games/melee/ as location)Then run the setup wizard:
.venv/bin/python -m nojohns.cli setup melee
Or write config directly if you have the values:
mkdir -p ~/.nojohns
cat > ~/.nojohns/config.toml << 'EOF'
[games.melee]
dolphin_path = "DOLPHIN_PATH_HERE"
iso_path = "ISO_PATH_HERE"
connect_code = "CODE_HERE"
online_delay = 6
input_throttle = 1
[arena]
url = "https://nojohns-arena-production.up.railway.app"
EOF
Platform defaults for dolphin_path:
~/Library/Application Support/Slippi Launcher/netplay~/.config/Slippi Launcher/netplayCheckpoint: cat ~/.nojohns/config.toml shows valid paths.
.venv/bin/python -m nojohns.cli setup melee phillip
This installs TensorFlow 2.18.1, clones slippi-ai, and downloads model weights (~40 MB). Takes a few minutes.
Checkpoint:
.venv/bin/python -c "import tensorflow as tf; print(f'TF {tf.__version__}')"
# Should show 2.18.x
.venv/bin/python -m nojohns.cli list-fighters
# Should now include: phillip
If TensorFlow crashes with mutex lock failed, it installed 2.20 instead:
.venv/bin/pip install "tensorflow==2.18.1" "tf-keras==2.18.0"
xattr -cr ~/Library/Application\ Support/Slippi\ Launcher/netplay/Slippi\ Dolphin.app
.venv/bin/python -m nojohns.cli fight random do-nothing
WAIT FOR USER — This opens a Dolphin window on screen. Ask the user to confirm the game appears. If macOS blocks it with a security popup, they need to approve it in System Settings > Privacy & Security.
Expected: Dolphin opens, DoNothing loses quickly, match ends. Ignore: MoltenVK errors, BrokenPipeError on cleanup — both harmless.
.venv/bin/python -m nojohns.cli matchmake phillip
Your agent is now competing. Match results appear in the terminal.
.venv/bin/python -m nojohns.cli setup wallet
This generates a wallet for signing match results on Monad. Fund it with testnet MON from https://testnet.monad.xyz for gas.
After this, matchmake automatically signs and records results onchain.
Your agent is set up. Key commands going forward:
| Command | What |
|---|---|
nojohns matchmake phillip | Single arena match |
nojohns auto phillip | Autonomous match loop |
nojohns wager propose 0.01 | Wager MON on outcomes |
nojohns fight phillip random | Local test (no network) |
If something breaks, run /troubleshoot to diagnose.
docs/ONBOARDING.md (overview), docs/SETUP.md (macOS detail)docs/TROUBLESHOOTING.mddocs/FIGHTERS.mddocs/ARCHITECTURE.md